Description
A steel nose piece is welded to a tubular-steel barrel. The after end of the barrel is threaded internally to receive the tail assembly. A row of 12 hexagonal bolts around the circumference of bomb 3K inches forward of the after end of the barrel hold a steel reinforcing section in place. This cylindrical section closed at one end by a perforated plate is strengthened by three strips of metal which divide it into six equal compartments. Twelve holes are drilled in the outer circumference of the section to accommodate the bolts. TNT is cast in the section to a point flush with its after edges. The tail cone is welded to a collar which screws into the after end of the barrel.
Four tail fins are spot welded to the tail cone. They are braced by a single set of box-type struts. The tail fins are further strengthened by four steel plates welded to the outer edges and running the entire length from the after end to a point just forward of the curved portion of the fins. A square hole is cut in each plate to permit access to the tail fuze pocket.
Hazardous Components
Paper wrapped cast picric blocks sealed with TNT (230 lbs, 104.55 kg)
See Also
General Information, Japanese Army Bombs
Nose, A-8(a), Type 4 Two Second Delay
Tail, B-8(a), Type 4 Five Second Delay
Source(s)
